Fairness You Can Prove,
Not Promise

Every live price tick, every trade, every settlement on Tradesmarter infrastructure is independently verifiable — by your traders from their result screen, and by your regulator without ever asking for your cooperation.

ISO/IEC 27001:2022-certified dxFeed data SHA-256 chained price history Deterministic settlement Regulator-replayable audits
Why it matters

The Problem With Black-Box Settlement

When a trader loses a position and asks “was that price real?”, most platforms can only answer with their reputation. In a conventional setup the price feed, execution logic, and settlement engine all live inside the operator's infrastructure — so even a perfectly honest operator has no way to demonstrate honesty. Disputed trades become the operator's word against the trader's, complaints escalate, and every regulatory review starts from zero.

The cost isn't just compliance overhead — it's retention. Traders who suspect the game leave, and tell others.

The principle: a fair platform shouldn't require trust. It should make trust unnecessary — by making manipulation mathematically detectable and settlement deterministically reproducible.
The architecture

How Tradesmarter Makes Every Tick Accountable

Four mechanisms, working together, turn fairness from a marketing claim into a checkable property of the system.

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1. Hash-Chained Price History

Every live market data update is cryptographically fingerprinted with SHA-256, and each fingerprint incorporates the ones before it. Rewriting any historical price breaks every fingerprint after it — instantly visible to anyone holding a receipt.

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2. Immutable Trade Intent

The moment a trade is accepted, everything that defines it is recorded: instrument, direction, stake, payout terms, exact price and timestamp, and the feed and rules versions in force. Nothing can drift between placement and settlement.

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3. Independent Market Data via dxFeed

Prices come from dxFeed, an institutional-grade third-party provider — certified to ISO/IEC 27001:2022 across all its services — that aggregates quotes from multiple independent venues into a single consolidated feed — the platform never generates its own prices. The sequenced records are signed, and batches of price history are committed via Merkle roots to a public blockchain: a proof layer only, never in the execution path.

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4. Deterministic Settlement

Settlement is a formula, not a decision: recorded trade terms plus the signed live market path equals the result. Run the same inputs, get the same outcome — anyone can. No randomness enters the process at any point.

price-chain — live SHA-256, computed in your browser

These fingerprints are real SHA-256 hashes computed by your own browser right now — not screenshots. Change one historical price and watch the chain expose it.

Stakeholders

What This Means for Each Party

WhoWhat they get
Your tradersFairness they can see: result screens carry the price fingerprints behind each outcome, recomputable in the browser. No blockchain wallet, no technical knowledge required.
You, the operatorDisputes that resolve themselves — the evidence is on the trader's own screen. Lower support load, fewer chargebacks, and a trust story your competitors can't match.
Your regulator & test labsA complete, replayable audit trail from raw market data to settled outcome — verifiable independently, without operator or vendor cooperation.
Compliance

The Regulator Conversation, Simplified

Licensing reviews tend to circle the same questions. This architecture gives each one a short answer.

“Can the operator influence outcomes?”
No — settlement is deterministic over signed inputs.
“Can historical data be altered?”
Not undetectably — the hash chain and public Merkle commitments seal it.
“Where do the prices come from?”
From dxFeed, an independent third-party market-data aggregator consolidating multiple venues — the operator never produces its own quotes.
“Is there any randomness in outcomes?”
None — settlement derives entirely from the live, signed market feed.
“Is the data source independently audited?”
Yes — dxFeed's information security management system is certified to ISO/IEC 27001:2022, audited by A-LIGN (ANAB- and UKAS-accredited).
“Can a completed trade be reproduced by a third party?”
Yes — from the receipt alone, without operator or vendor cooperation.
Certified at the source

Market Data You Don't Have to Take on Faith

Verifiability is only as strong as the data it starts from. That is why the feed itself is independently certified.

Our market data provider, dxFeed, holds ISO/IEC 27001:2022 certification — the international standard for Information Security Management Systems — with a scope covering all dxFeed services across its global operations. The certification audit was performed by A-LIGN, an assessor accredited by both the ANSI National Accreditation Board (ANAB) and the United Kingdom Accreditation Service (UKAS) (certification announcement).

For a regulator, this closes the loop that most fairness claims leave open: it is not the operator, and not Tradesmarter, vouching for the integrity of the price source — it is an independently audited, internationally accredited standard applied to a market-data institution serving buy-side and sell-side firms globally.

1Independent venuesMultiple exchanges and liquidity venues quote in parallel
2dxFeed aggregationConsolidated into one feed under an ISO/IEC 27001:2022-certified ISMS
3Signed & sequencedRecords arrive ordered and signed — provenance travels with every tick
4SHA-256 chainEach update fingerprinted and locked to its history; Merkle roots committed publicly
5Deterministic settlementTrade terms + signed market path = result. No discretion, no randomness
6Trader receiptEvery outcome reproducible by the trader, an auditor, or a regulator — independently
FAQ

Frequently Asked Questions

Do my traders need crypto wallets or blockchain accounts to verify trades?

No. Verification happens on the result screen — traders can recompute the fingerprints in their browser. The blockchain is used only as a public commitment layer for price history; traders never interact with it.

Does the verification layer slow down execution?

No. Fingerprinting and Merkle commitments run alongside the trading path, not inside it. Execution latency is unaffected.

Which products does the fairness architecture cover?

It is live in production today on real-market products — every outcome derives from the signed dxFeed price path. Coverage is expanding across the product line; ask us about the current status for the verticals you plan to launch.

Where does the price data come from?

From dxFeed, an institutional third-party market-data provider that aggregates quotes from multiple independent trading venues into one consolidated feed. dxFeed is certified to ISO/IEC 27001:2022 across all its services, with the audit performed by A-LIGN, an ANAB- and UKAS-accredited assessor. Because pricing originates outside the platform and arrives signed and sequenced, neither the operator nor Tradesmarter can influence the market path a trade settles against.

Make Fairness Your Competitive Advantage

Regulators are tightening, and traders are savvier than ever. Operators who can prove fairness — rather than assert it — win licenses faster and keep traders longer.

Talk to Us About Verifiable Fairness →

Last updated: September 2026. Architecture details reflect current production capabilities; confirm product-by-product coverage during scoping.